FaceGen Modeller is, perhaps, the better software for creating 3D faces from photos.  The issue is exporting the newly created features to a character of your choice.  I haven't been to the site in quite some time, and only support available was for V4.  However, exportation involved remapping the head UV to accept map.  Many things may have changed.  Faceshop never worked well for me.  The head morphs were always misshapen and unusable but the texture maps had potential.